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Modelling Approach to Fenton and Photo-Fenton Treatments
-
M. Pérez-Moya
,
M. Graells
Published/Copyright:
December 8, 2016
Abstract
Fenton, Fenton-Like and Photo-Fenton processes were revealed effective in the mineralization of 4-chlorophenol, 4-CP. Experiments for the Fenton photo-assisted degradation of 4-CP were planned under the Design of Experiments (DOE) scheme. Results show that for the lowest 4-CP concentration (74 mg·L-1) the TOC reduction rises from 65% ([H2O2] = 200 ppm, [Fe(II)] = 10 ppm) up to close 100% ([H2O2] = 800 ppm, [Fe(II)] = 10 ÷ 50 ppm). Complete TOC reduction was attained, probably due to the reagent excess. However, for highest 4-CP concentration (222 mg·L-1), TOC reduction achieved was 47% ([H2O2] = 200 ppm, [Fe(II)] = 10 ÷ 50 ppm), for the worst case and 81% ([H2O2] = 800 ppm, [Fe(II)] = 50 ppm) for the best. To describe this behavior, different models were fit to degradation data. These models are later compared and discussed. As recent studies notice, a second order polynomial equation (including bilinear terms) may be a questionable approach in many cases. For this reason, an alternative model, which aims at improving empirical fitting to the performance of the system, is proposed and validated.
Received: 2007-9-3
Revised: 2007-11-26
Accepted: 2007-11-30
Published Online: 2016-12-8
Published in Print: 2008-1-1
© 2016 by Walter de Gruyter Berlin/Boston
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Articles in the same Issue
- Preface
- An Integral Degradation Model to Describe H2O2-Photooxidation of Linear Alkylbenzenesulfonate (LAS) Surfactants
- Characterization of the Radical Oxidative Level in the Degradation of Phenolic Compounds with H2O2/UV
- Photocatalytic Decolorization of Methylene Blue with Two Photoreactors
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- Evaluation of Zinc Oxide-Based Photocatalytic Degradation of a Commercial Pesticide
- Photocatalytic Activity of W-Doped TiO2 Nanopowders
- Catalytic Wet Peroxide Oxidation Process for the Continuous Treatment of Polluted Effluents on a Pilot Plant Scale
- Effect of Ultrasound on the Properties of Heterogeneous Catalysts for Sono-Fenton Oxidation Processes
- AOP in Water by Means of a DBD Conducted in a Coaxial Reactor
- Removal of Atrazine from Simulated Groundwater by AOTs
- Modelling Approach to Fenton and Photo-Fenton Treatments
- Chlorobenzene Degradation Assisted by TiO2 under UV Irradiation in Aqueous Solutions
- Optimization of Parameters for Hydrogen Production by Photocatalytic Alcohol Reforming in the Presence of Pt/TiO2 Nanocrystalline Thin Films
- Study on Bipolar Corona Discharge in Emitting Needle Electrode Configuration
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- Micro-pore Ceramic Filter and UV System as Ballast Water Treatment: Preliminary Study on Chlorella Removal and Bacteria Inactivation
- Application of Box–Wilson Experimental Design Method for the Photocatalytic Degradation of Remazol Brilliant Blue R-A with Solar UV/TiO2/Fe(III) Processes
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- Photosensitized Chlorobenzene Degradation by UV/H2O2 Oxidation
- Influence of Solution Composition and Chemical Structure of Dye on Removal of Organic Dye by DC Diaphragm Discharge in Water solutions
- Photocatalytic Oxidation of Multi-Component Systems – An Investigation Using Toluene/Ethylbenzene, Octane/Decane/Dodecane and Formaldehyde/Acetaldehyde
